#!/usr/bin/env node

const Dog=require('./02-dog.js');

const taidi=new Dog('taidi',4);
      zangao=new Dog('zangao',6);
taidi.on('bark',onBark);
zangao.on('bark',onBark);

function onBark(){
  console.log(`name:${this.name},energy:${this.energy}`)

};

setTimeout(()=>{
  console.log('taidi eat food')

})
